49831120 has 20 divisors (see below), whose sum is σ = 115857540. Its totient is φ = 19932416.

The previous prime is 49831073. The next prime is 49831127. The reversal of 49831120 is 2113894.

It is a happy number.

49831120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 15303744 + 34527376 = 3912^2 + 5876^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49831127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311365 + ... + 311524.

It is an arithmetic number, because the mean of its divisors is an integer number (5792877).

Almost surely, 2^49831120 is an apocalyptic number.

49831120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49831120 is an abundant number, since it is smaller than the sum of its proper divisors (66026420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49831120 is a wasteful number, since it uses less digits than its factorization.

49831120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622902 (or 622896 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 49831120 is about 7059.1160919764. The cubic root of 49831120 is about 367.9879091806.

The spelling of 49831120 in words is "forty-nine million, eight hundred thirty-one thousand, one hundred twenty".